| Modification Notes |
ATP11B (ATPase, class VI, type 11B), also known as ATPIR or ATPIF, is a 1,177 amino acid multi-pass membrane protein that belongs to the cation transport family of P-type ATPases. Like most P-type ATPases, ATP11B is phosphorylated in its intermediate state and it uses ATP to drive the active transport of ions across cellular membranes. ATP11B, which contains 10 transmembrane domains, is expressed at high levels in ovary, kidney, testis and corpus callosum and is encoded by a gene that maps to human chromosome 3. Chromosome 3 is made up of about 214 million bases encoding over 1,100 genes, including a chemokine receptor (CKR) gene cluster and a variety of human cancer-related gene loci. Marfan Syndrome, porphyria, von Hippel-Lindau syndrome, osteogenesis imperfecta and Charcot-Marie-Tooth Disease are a few of the numerous genetic diseases associated with chromosome 3. |